Update Makefile in test case

Due to optimization in the code generation process some needed functions are not generated if not used by the runtime itself. But as user code makes here direct call to the runtime, we have to force the generation of the needed functions

Docs/examples/calculate_crc/Makefile

@@ -5,7 +5,7 @@ $(info ${PATH})
 all:	cTest adaTest
 
 cTest:
-	asn1scc -mfm postEncoding -c -ACN -atc -o c_out/ a.a* && (cd c_out/ ; make coverage; cd ..)
+	asn1scc -if Acn_Dec_Int_PositiveInteger_ConstSize -if Acn_Enc_Int_PositiveInteger_ConstSize -mfm postEncoding -c -ACN -atc -o c_out/ a.a* && (cd c_out/ ; make coverage; cd ..)
 
 adaTest:
 	asn1scc -mfm postEncoding -Ada -ACN -atc -o a_out/ a.a* && (cd a_out/ ; make coverage; cd ..)